JD
James Dugan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this James Dugan across the 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1920), then head of a 9-person household.
Age 20
b. ~1920
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | Dugan |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Additional Details | |
| Occupation | glassworker |
| Industry | radio |
| Class of Worker | PW |
| Hours Worked | 20 |
| Income (1939) | 496 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Glassworker |
| Township / Ward | Philadelphia |
| Est. Birth Year | ~1920 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Joseph Dugan | Son | — | 14 | ~1926 |
| Thomas Dugan | Son | — | 22 | ~1918 |
| Elizabeth Dugan | Head | — | 50 | ~1890 |
| Gertrude Dugan | Daughter | — | 17 | ~1923 |
| Marie Dugan | Daughter | — | 25 | ~1915 |
| John Dugan | Son | — | 27 | ~1913 |
| William Dugan | Son | — | 29 | ~1911 |
| Stephen Dugan | Son | — | 20 | ~1920 |
| James Dugan | Son | — | 20 | ~1920 |
Census Appearances
1930
Philadelphia, Pennsylvania
Son, age 10
Philadelphia, Pennsylvania · implied b. ~1920 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duggan |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Philadelphia-County, Pennsylvania
Son, age 20
Philadelphia-County, Pennsylvania · implied b. ~1920 — 9 household members
| Surname | Dugan |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Occupation | glassworker |
| Industry | radio |
| Class of Worker | PW |
| Hours Worked | 20 |
| Income (1939) | 496 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links James Dugan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Dugan
Son · 1940 · age 20 · b. ~1920 · Pennsylvania
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Sibling
Marie Dugan
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Dugan
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gertrude Dugan
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Dugan
Sibling · 1940 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Stephen Dugan
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Dugan
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Dugan
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Philadelphia-County, Pennsylvania
Open full size
1940 US Federal Census — Philadelphia-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03709-00722)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Patrick Dugan | 18 | Son | No | West Virginia |
| 2 | Pasquale Dugan | 16 | Son | No | West Virginia |
| 3 | Peter Dugan | 15 | Son | No | West Virginia |
| 4 | Elizabeth Dugan | 50 | Head | No | Pennsylvania |
| 5 | William Dugan | 29 | Son | Chipper | Pennsylvania |
| 6 | John Dugan | 27 | Son | No | Pennsylvania |
| 7 | Marie Dugan | 25 | Daughter | Sewing | Pennsylvania |
| 8 | Thomas Dugan | 22 | Son | No | Pennsylvania |
| 9 | Stephen Dugan | 20 | Son | Clerk | Pennsylvania |
| 10 | James Dugan THIS PERSON | 20 | Son | Glassworker | Pennsylvania |
| 11 | Gertrude Dugan | 17 | Daughter | No | Pennsylvania |
| 12 | Joseph Dugan | 14 | Son | No | Pennsylvania |
| 13 | Ralph Kocanovich | 33 | Head | Fireman | Austria |
| 14 | Christine Kocanovich | 25 | Wife | Hairdresser | Austria |
| 15 | John Kocanovich | 6 | Son | — | Pennsylvania |
| 16 | Isabella Kocanovich | 61 | Daughter | Engineer | Austria |
| 17 | Joseph Kocanovich | 7 | Son | — | Pennsylvania |
| 18 | Frank Tenanty | 27 | Head | Helper | Pennsylvania |
| 19 | Pearl Tenanty | 25 | Wife | No | Pennsylvania |
| 20 | Eugene Tenanty | 6 | Son | — | Pennsylvania |
| 21 | Rudolph Olsen | 25 | Head | Machinist | Pennsylvania |
| 22 | Mildred Olsen | 26 | Wife | No | Pennsylvania |
| 23 | Stanley Kohoton | 37 | Head | Truck Driver | Pennsylvania |
| 24 | Sophie Kohoton | 37 | Wife | No | Pennsylvania |
| 25 | Francis Kohoton | 5 | Son | — | Pennsylvania |
| 26 | Harry Valzykowski | 32 | Head | Assembler | Pennsylvania |
| 27 | Cecelia Valzykowski | 25 | Wife | Assembler | Pennsylvania |
| 28 | Benjamin Lerner | 31 | Head | Foreman | Pennsylvania |
| 29 | Hannah Lerner | 29 | Wife | No | Pennsylvania |
| 30 | David Lerner | 7 | Son | — | Pennsylvania |
| 31 | Julius Hoch | 29 | Head | Shipping Clerk | Pennsylvania |
| 32 | Dorothy Hoch | 27 | Wife | Textile Worker | Pennsylvania |
| 33 | Julia Hoch | 2 | Son | — | Pennsylvania |
| 34 | Carl Metzger | 49 | Head | Fireman | New York |
| 35 | Anna Metzger | 47 | Wife | No | Pennsylvania |
| 36 | Frances Metzger | 19 | Daughter | Wool Sorter | Pennsylvania |
| 37 | Carl Metzger | 16 | Son | No | Pennsylvania |
| 38 | Robert Metzger | 15 | Son | No | Pennsylvania |
| 39 | George Thomas | 35 | Head | Driver | Pennsylvania |
| 40 | Ruth Thomas | 35 | Wife | No | Pennsylvania |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)